Cane Creek 40 Series Top IS41
40 Series Top IS41
Cane Creek

Cane Creek 40 Series Top IS41

In Stock

Lightweight aluminum top for Cane Creek 40-Series integrated headsets. Sealed cartridge bearing, available in 9mm or 15mm cover heights for precise fit and durable performance.

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Available Options

Option Price Availability
Cane Creek, 40 Series, Headset Top Assembly, IS/41/28.6/H9/K, 37g — In Stock
Cane Creek, 40 Series, Headset Top Assembly, IS/41/28.6/H15/K, 42g — In Stock

Product Details

Overview & Technology

Cane Creek's 40-Series Top (IS41) brings proven headset tech from the premium 110-Series into a value-focused package. Precision-machined aluminum cups and sealed cartridge bearings deliver smooth steering and long life without the premium price tag. The top assembly is engineered for integrated headsets with a 41mm upper cup ID and 28.6mm steerer interface (SHIS: IS41/28.6/H9 or H15). Available in both short (9mm) and tall (15mm) bearing covers, the 40-Series tops allow small stack adjustments and maintain consistent graphics and interchangeable parts across more than 40 configurations.

Key Features & Construction

Materials & Bearings: The top uses lightweight, CNC-machined aluminum for strength-to-weight balance and aesthetic consistency. It ships with a sealed cartridge bearing to keep grit and water out for dependable performance on wet, muddy, and dusty trails. Design benefits: low stack height (6mm specified stack), tight tolerances for minimal play, and easy swapping between H9 (9mm) and H15 (15mm) covers. Weight is featherlight — ~37g for the 9mm top and ~42g for the 15mm — making this an unobtrusive upgrade or replacement.

Fit, Compatibility & Installation

This top assembly is compatible with integrated head tube standards using an IS41 upper cup (41mm frame bore) and a 28.6mm (1-1/8") steerer. Confirm your frame’s SHIS spec — IS41/28.6 — before purchasing. The part number BAA0081K corresponds to the black finish variant sold at Forest Bikes. Installation is straightforward with standard headset press tools: press the upper cup into the head tube, drop in the sealed cartridge bearing, then fit the appropriate cover (H9 or H15). Torque the top cap and stem per manufacturer specs to eliminate play without binding the steerer.

Who This Is For

This top is aimed at mountain riders and builders who need a reliable, lightweight, and serviceable integrated headset component. It's ideal for riders maintaining a hardtail, trail, or cross-country frame that uses IS41 upper cups and a 1-1/8" steerer. If you want a durable sealed bearing, consistent Cane Creek fitment across multiple frames, or an easy-to-swap top cover to fine-tune stack height, the 40-Series IS41 top assembly is a strong, cost-effective choice.

Key Features

  • ✓ Precision CNC aluminum top for durable, lightweight performance
  • ✓ Sealed cartridge bearing for low maintenance and long life
  • ✓ Available in H9 (9mm) and H15 (15mm) bearing cover heights
  • ✓ Fits integrated frames with IS41 upper cup and 28.6mm steerer
  • ✓ Consistent Cane Creek graphics and interchangeable parts
  • ✓ Ultra-light: ~37g (H9) and ~42g (H15) — minimal weight penalty
  • ✓ Over 40 configurations across the 40-Series for broad compatibility

Specifications

Bearing Grade Sealed cartridge
Headset Type Integrated
Upper Cup 41mm
Material Aluminum
Primary Color Black
S.H.I.S. IS41/28.6/H9
Steerer Tube 1-1/8''
Stack Height 6
Headset Position Upper
SHIS Upper IS41/28.6

Product Identifiers

Vendor Item # BAA0081K
UPC 840226095127

Frequently Asked Questions

How do I know if this top fits my bike?

Check your frame's SHIS spec — the Cane Creek 40-Series Top is IS41/28.6. That means your head tube must accept an upper cup with a 41mm ID and your steerer should be 28.6mm (1-1/8"). Measure or refer to your frame's documentation before purchasing.

What is the difference between H9 and H15 covers?

H9 (9mm) and H15 (15mm) refer to the bearing cover stack heights. Choosing a taller cover adds 6mm of stack height and can help with headset preload and stack offset when fitting spacers or stems. Both use the same sealed bearing and upper cup geometry.

Can I service the bearing or replace it later?

Yes. The 40-Series uses sealed cartridge bearings that are replaceable. When service is needed, press out the old bearing and press in a replacement of the correct size. Replace sealed bearings rather than attempting to repack them to maintain sealing and longevity.

Is this suitable for downhill or enduro use?

While durable and well-machined, this top is optimized for trail, XC, and general mountain use. For heavy gravity or enduro duty you may prefer heavier-duty parts designed specifically for extreme loads, though many riders use 40-Series components successfully on aggressive rigs.

What tools do I need to install the top?

You'll need a headset press or suitable arbor press to seat the upper cup and a crown race tool if applicable. A torque wrench for stem and top cap bolts ensures proper preload without over-tightening. If unsure, have your local shop perform installation.

Does the top include the bearing?

Yes — Cane Creek's top assembly ships with a sealed cartridge bearing sized for IS41/28.6. Verify the product variant (H9 or H15) when ordering to get the desired cover height.

Buying Guide

When selecting a headset top assembly, match the SHIS standard exactly: IS41 upper cup and 28.6mm steerer in this case. Decide whether you need the low-profile H9 or the taller H15 cover based on stem clamp height and spacer stack. Weight differences are minimal, so choose for fit and clearance. Consider the riding conditions: sealed cartridge bearings (like Cane Creek’s 40-Series) are ideal for riders who want low maintenance and reliable performance across wet and muddy seasons. If you run a tapered steerer or non-integrated frame, look for the appropriate 40-Series variant instead.

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